RO water purifier advantages and disadvantages

Reverse Osmosis(RO) water purifier is best suitable to treat hard water. RO water purifier removes dissolved materials, contaminants but RO water purifier not much effective over microorganisms.

RO water purifier uses semi-permeable membrane through which salty water forces to move. During this process it filter contaminants such as arsenic, nitrates, sodium, copper and lead, some organic chemicals. RO water purifier helps to convert hard water to sweet, soft water using RO membrane.
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Disadvantages of RO water purifier

Removes essential minerals: While RO water purifier removes dissolved impurities it removes natural mineral such as iron, magnesium, calcium and sodium which are essential to the human body and cause a mineral deficiency in the body.

Not kills bacteria, viruses: RO water purifier does not kill waterborne disease-causing bacteria and viruses.There high probability that microorganisms can pass through RO membrane( It is advisable to pass RO water through the UV water purifier to treat microorganisms )

Water taste altered: As natural minerals are removed water gets de-mineralized as a result water taste affected, it becomes tasteless.

More time to purify: RO water purifier takes too long to the purification of water.

Water wastage: Approximately much more water compared to filtered out water flushed down as waste water.

Expensive: RO water purifier costlier compared to counterpart water purifiers UV and RO water purifier consumes much more electricity.

RO membrane breakage: No mechanism is there, to know when to replace RO membrane.
Chlorine can damage RO membrane. Chlorine makes small pores of RO membrane clogged and makes drastic reduction in performance.On breakage of membrane dissolved salts, bacteria, viruses can easily pass through RO membrane. It is advisable to replace RO membrane once in a year.